144373261 has 2 divisors, whose sum is σ = 144373262. Its totient is φ = 144373260.

The previous prime is 144373247. The next prime is 144373291. The reversal of 144373261 is 162373441.

144373261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74132100 + 70241161 = 8610^2 + 8381^2 .

It is a cyclic number.

It is not a de Polignac number, because 144373261 - 2¹³ = 144365069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144373241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72186630 + 72186631.

It is an arithmetic number, because the mean of its divisors is an integer number (72186631).

Almost surely, 2^144373261 is an apocalyptic number.

It is an amenable number.

144373261 is a deficient number, since it is larger than the sum of its proper divisors (1).

144373261 is an equidigital number, since it uses as much as digits as its factorization.

144373261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 144373261 is about 12015.5424763096. The cubic root of 144373261 is about 524.6007679884.

The spelling of 144373261 in words is "one hundred forty-four million, three hundred seventy-three thousand, two hundred sixty-one".